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New prototype of very compact LIDAR for atmospheric particulate monitoring

G. PICA1,* , A. BOSELLI2, F. CASTALDO3, M. ROSARIA SANTOVITO1, W. XUAN4

Affiliation

  1. CO.RI.S.T.A. Consortium for Research on Advanced Remote Sensing Systems, Napoli, Italy
  2. IMAA CNR –Area della Ricerca di Potenza -Tito Scalo I-85050 Italy
  3. PROMETE, INFM Spin off Company, Napoli, Italy
  4. INFM –CNR Unità di Napoli Via Cinthia 80126, Napoli, Italy

Abstract

CO.RI.S.T.A. led a research project funded by the Italian Ministry of University and Research to realize a portable lidar system to monitor atmospheric particulate. The main goal of the project is to get a very compact, inexpensive, easy-andsafe use system. The designed lidar system is provided with an optical apparatus of emission/reception assembled in bistatic configuration. Thanks to its limited size (height 1m, width 1m) and light weight (less than 50 Kg), the system can be easily moved for in situ measurements. To maintain a high efficiency and guarantee reliability we use a pulsed Nd:YAG laser emitting at 532nm and 355nm. The radiation is sent into the atmosphere by a remote alignment beam-steerer. The receiving telescope has a Cassegrain configuration with a spherical primary mirror and an elliptical secondary mirror. Two acquisition channels were realised for analog and digital acquisition. Both the telescope and the optical acquisition channel have been modelled and deeply analysed with Zemax, a 3D simulation program which allows to design optical systems and to investigate their performance. Intercalibration measurements of the prototype and aerosols backscattering measurements will be presented..

Keywords

Portable Lidar, Aerosol, Remote sensing, Atmospherical particulate.

Submitted at: Aug. 1, 2008
Accepted at: Nov. 11, 2008

Citation

G. PICA, A. BOSELLI, F. CASTALDO, M. ROSARIA SANTOVITO, W. XUAN, New prototype of very compact LIDAR for atmospheric particulate monitoring, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 11, pp. 3111-3116 (2008)